TMEIC 21-VLL Series Vertical Motors

Introducing the VLL Series: High-Capacity Vertical Motors

The 21-VLL series three-phase medium-voltage motors are designed

for large capacity applications.

• UP to 6500 kW (8.700 HP)

• WPII, TEAAC and TEWAC and custom frames

• Designed to meet worldwide standards

• Fabricated steel plate construction

• C5 steel lamination

Engineered for Reliability and Serviceability

The 21-VLL series is designed with features that maximize reliability while

simplifying maintenance and operation. Application-specific thrust bearings

and optional non-reversing ratchets ensure upper bearing performance

under varying loads. A precision-built, split-core stator reduces core loss and

assembly time, while the copper bar rotor is optimized for pump applications

with enhanced starting torque and robust construction.

Modular cooling options—including water-to-air, air-to-air (IP55), and open air

circuits—support a wide range of operating environments with durable,

corrosion-resistant materials.

Features & Benefits

Excellent Electrical Performance

• Electromagnetic field analysis

• Heat conduction analysis

• Air flow system analysis

Insulation & Cooling

• Angular contact ball bearings (self-cooled)

• Spherical roller thrust bearings (self-cooled, air-cooled, water-cooled, oil-cooled

• Tilting pad thrust bearings (air-cooled, water-cooled, oil-cooled

• Drip-proof, NEMA Weather Protected

Noise Reduction

• The latest technology reduces noise to 80 dBa and less, and vibration level to 1.8 mm/sec

• Lower noise and vibrations address health and reliability concerns

Efficiency

• Increased efficiency

• Higher power factor

• Superior starting characteristics

Insulation

• Advanced VPI Insulation System

• Greater capacity of Improved insulation withstanding higher surges of power

• Inverter drive operation is an option